I exported a sphere (500 faces) to my engine, through the exportation I computed smooth normals. Here's the result: To render it I use a per pixel lighting. Is it correct to see the adjacents triangles to the specular lighting more brightly? It isn't as smooth as I thought it would be. But maybe this is due to the low polygon count. [edited by - Alload on June 4, 2002 5:06:01 AM]

Here''s the code I use for the pixel shader (in the vertex shader, I transform the light and halfway vectors into texture space):

//Color map -> t0
//Normal -> t1
//Halfway vector-> t2
//Halfway vector-> t3 (power table)
//Light vector -> v0

ps.1.3

tex t0
tex t1

//Specular, I make the dot product between the halfway vector
//and the normal then I seek in a power table lookup for the
//powered result
texm3x2pad t2, t1_bx2
texm3x2tex t3, t1_bx2

//Diffuse
dp3 r1, t1_bx2, v0_bx2
mul r1, t0, r1

//Final color
add r0, r1, t3